OK.
I know if 4.4 Ah of those are equal to or better than 10 Ah of SLA then they are a super good deal as three new 10 Ah SLAs will do five miles with at least two moderate hills round trip at approx. 15 mph on flat and 10 mph up hills. I know this from experience when I was running the Currie at 36 volts and 750 watts.
I will order one for now and a charger and will limit their distance to about 1/2 of that to be on the safe side which would be 2- 1/2 miles with one or two small hills. Since I have a 8.0 - 6S LiPo pack that is still good and NOT destroyed I can use that for 5 mile round trips to get to the destination then switch over to the new 36 volt - 4.4 Ah pack to return back home.
Then next month I will order a second and if they work ok with no problems I may order a third and a fourth for that price. Or I will stop at two and order the box of 60 Full River cells. I am not sure but I would really like to build a big pack like DA does from LIFEPO4 cells. A pack that will allow a 50 mile round trip or 50 miles one way and then recharge to return back home. I will just need a wiring diagram which can show me how to hook up a BMS to a large LIFEPO4 pack with 60 cells in parallel series.
I do not have speakers so a youtube video is not what I am looking for. What I want to see is a diagram similar to mine with color coded wires going from the BMS to the LIFEPO4 pack. My diagrams clearly show that I know how to hook up a LIFEPO4 pack with 60 cells. The BMS is all I need to learn now to build one and the materials are not expensive.
There is one of my diagrams with the parallel series wiring. Now I just need to know how to hook up a BMS. I like using bullet connectors which will go from the BMS to the charger and also from the custom built pack to the controller. Does the BMS stay hooked up to the pack when running the pack. It seems like those 36 volt packs do by looking at them. Thanks.
LC out.
PS. I found it but that is insane. For a 60 cell pack I will need 60 wires going to all the positive battery terminals. That is a lot of wires. Is that my only option ? If so I have two 6S LiPo chargers which will charge LIFEPO4.
If I were to build 10 - 6S packs from the box of 60 Full River cells I could charge them two at a time. I need to know my options. I would rather use the chargers I already own. If a 6S pack is not enough voltage it is simple to run two packs in series for 12S LIFEPO4. it is also simple to parallel series them by hooking each pack to bullet connectors which I am used to dealing with. Please let me know.
OK The bottom picture shows how I think it would be wired. I never charged LIFEPO4 with either of my LiPo chargers and I do not know if LIFEPO4 packs use balance connectors but it seems that the LiPo charger in balance mode is the same thing as a BMS so will balance plugs work to balance charge 6S LIFEPO4 the same way it will do for for 6S - LiPo ????
60 cells will make 10 - 6S LIFEPO4 packs and I have two 6S chargers so I can charge them all and use four at a time in parallel series for two 12S packs. I will have 12 cells left over but if I buy a second box I can build 3 more 12S packs. 120 / 24 = 12
Please let me know if it will work.